If you or someone you know uses fentanyl, or any street drug that might contain it, there is a real chance that xylazine is in the mix too. The DEA has seized fentanyl and xylazine combinations in 48 of 50 states, and in some cities xylazine is found in the overwhelming majority of the street fentanyl supply. Most people using it have no idea it is there. Xylazine is not an opioid, it is not reversed by naloxone, and it causes serious physical harms that fentanyl alone does not, including dangerous, sometimes life-threatening skin wounds. Knowing what tranq dope is and what it does to the body is now essential information for anyone who uses these drugs or cares about someone who does.
What Is Xylazine?
Xylazine is not a controlled substance in the United States. That status has made it easier to manufacture, import, and distribute than scheduled drugs like fentanyl. It is also very cheap: according to a DEA report, a kilogram of xylazine powder can be bought online from overseas suppliers for as little as $6 to $20. Because it is so cheap, traffickers use it to stretch their supply, adding xylazine so they can use less fentanyl or heroin in a mixture while keeping the same weight. It also lengthens the short high that fentanyl produces, which is why some people seek it out, while many others have no idea it is in their drugs at all.
Naloxone (Narcan) does not reverse xylazine. It reverses the fentanyl component, which is critical and can still be lifesaving, but the person may remain deeply sedated from xylazine even after naloxone works. Always give naloxone, call 911, and provide rescue breathing. Do not assume the situation is resolved.
How Tranq Dope Changes the Overdose Picture
The most critical thing to understand about a fentanyl-xylazine overdose is that naloxone only addresses half of what is happening. Naloxone reverses the opioid component (the fentanyl) but it does not reverse xylazine’s effects. As the CDC’s overdose prevention guidance on xylazine makes clear, naloxone should still always be given because xylazine is almost always combined with fentanyl and reversing the opioid component can be lifesaving. However, the person may remain deeply sedated from xylazine even after naloxone has worked. This is not a naloxone failure; xylazine simply isn’t reversed by naloxone.
The practical consequence: after administering naloxone to someone suspected of overdosing on tranq dope, do not assume the situation is resolved if they are still unresponsive or barely responsive. Xylazine’s sedation can last 8 hours or more. The person still needs emergency medical care, rescue breathing if they are not breathing adequately, and continuous monitoring until EMS arrives. Call 911, give naloxone, and provide rescue breaths, moving through these steps quickly rather than waiting to see if one works before starting the next.
For more details on the different steps to do during an overdose, see our article: What to Do During an Overdose: A First Aid Guide.
The Wound Problem: Skin Necrosis and Xylazine
One of the most alarming and least understood consequences of xylazine is the development of severe skin wounds, including ulcers and necrosis (tissue that dies and breaks down). These wounds can appear anywhere on the body, not just where a person injects. A peer-reviewed case report describes a patient with extensive dead tissue, abscesses, and even bone infection (osteomyelitis) that required hospitalization, IV antibiotics, and surgical cleaning of the wounds. According to the DEA, these wounds can become so severe that they lead to amputation.
What makes the wounds especially dangerous is the way they form. Xylazine narrows the blood vessels and lowers blood pressure, which reduces blood flow to the skin. With less blood reaching the tissue, wounds heal poorly and are more likely to become infected. That is why xylazine-related wounds can appear away from the injection site and can keep getting worse over time. Left untreated, an infected wound can progress to life-threatening sepsis.
Anyone using street fentanyl who develops unexplained skin sores, ulcers, or wounds, especially on the arms or legs, should seek medical care right away and tell their provider they may have been exposed to xylazine. Treating these wounds early makes a real difference in how well they heal. Fear of being judged or getting in trouble often leads people to wait until a wound is severe before seeking help, which is part of why some of these wounds become so dangerous.
Xylazine Withdrawal: A Separate Clinical Problem
People who use tranq dope regularly can become physically dependent on the xylazine in it, on top of any opioid use disorder, and stopping can bring on a withdrawal that opioid medications do not treat. According to New York State’s Office of Addiction Services and Supports, withdrawal symptoms may include anxiety, high blood pressure, increased heart rate, sweating, restlessness, agitation, and irritability. Some people also report a low mood (dysphoria) and body aches.
Because xylazine is not an opioid, this withdrawal is not managed with buprenorphine or methadone, which treat the opioid side of dependence. Instead, case reports suggest other medications, such as clonidine, can help. Xylazine withdrawal is still not fully understood, there is not yet a clearly defined disorder or a standard treatment for it, but it is increasingly recognized as a separate problem that needs its own clinical attention. When it is poorly managed, it can make it harder for people to stay in treatment and complete care.
How Widespread Is Xylazine in the Drug Supply?
The geographic spread of xylazine has been rapid. What began in Puerto Rico in the early 2000s, and then appeared in Philadelphia and Connecticut, has now reached virtually the entire country. The DEA has documented fentanyl-xylazine mixtures in 48 of 50 states, and approximately 23% of fentanyl powder and 7% of fentanyl pills seized by the DEA in 2022 contained xylazine. In some areas the share is far higher: in one CDC analysis of drug samples from Maryland syringe services programs, xylazine was found in almost 80% of samples that contained opioids. Anyone using street fentanyl should assume xylazine may be present.
Professional Perspective: Fentanyl & Xylazine
Xylazine has become a common adulterant in the fentanyl supply, and it has changed the clinical picture of opioid-related overdose and addiction treatment. It has introduced a non-opioid sedative component that is not reversed by naloxone and a serious wound complication with no approved treatment protocol. Existing OUD medications also do not address the xylazine withdrawal syndrome.
“Opioid overdose reversal medications such as naloxone and nalmafene do not reverse xylazine’s effects. But experts recommend giving them because xylazine overdoses almost always include opioids and other drugs.”
For treatment programs, the practical implication is that xylazine-exposed patients may require wound care services, management of a non-opioid withdrawal syndrome, and overdose response education that goes beyond standard naloxone training. Programs that are treating fentanyl addiction in 2024 and beyond are treating tranq dope addiction whether they know it or not, and the clinical approach needs to reflect that reality.
What This Means When Looking for Treatment
If you or someone you care about has been using street fentanyl, especially in a city where xylazine prevalence is high, ask prospective treatment programs whether they have experience managing xylazine-involved cases. Specifically: do they provide wound care or have referral pathways for xylazine-related skin wounds? Are they equipped to manage xylazine withdrawal separately from opioid withdrawal? Do they educate patients and families on the modified overdose response needed when xylazine is involved? These are not hypothetical questions. They are directly relevant to safety and treatment success for anyone whose fentanyl supply may contain tranq.
Getting Help When Xylazine Is Involved
Tranq dope is harder to treat than fentanyl alone, but it is treatable. The opioid use disorder side responds to the same evidence-based medications and therapies used for any opioid addiction. The xylazine side requires additional attention: wound care, management of a distinct withdrawal syndrome, and overdose response training that accounts for naloxone’s limitations. Treatment programs that understand this can address both.
If you or someone you care about has been using street fentanyl and is ready to get help, the right starting point is a program with experience in the current drug supply. The wound care need alone is a reason not to wait. Infections that start as skin ulcers can progress quickly, and early treatment produces significantly better outcomes. An addiction medicine specialist or accredited treatment program can assess the full picture and recommend the right level of care.